scholarly journals An Infinite Suite of Links–Gould Invariants

2001 ◽  
Vol 10 (01) ◽  
pp. 37-62 ◽  
Author(s):  
David De Wit
Keyword(s):  
Infinite Series ◽  
The State ◽  
State Model ◽  
Model Parameters ◽  
Link Invariants ◽  
State Models ◽  
Quantum Superalgebras

This paper describes a method to obtain state model parameters for an infinite series of Links–Gould link invariants LGm,n, based on quantum R matrices associated with the [Formula: see text] representations of the quantum superalgebras Uq[gl(m|n)]. Explicit details of the state models for the cases n=1 and m=1, 2, 3, 4 are supplied. Some gross properties of the link invariants are provided, as well as some explicit evaluations.

scholarly journals MODEL NEGARA DALAM ISLAM: TINJAUAN TAFSĪR MAQĀṢIDĪ

2020 ◽  
Vol 1 (2) ◽  
pp. 150-165
Author(s):  
Lufaefi Lufaefi
Keyword(s):  
Social Security ◽  
The State ◽  
State Model ◽  
Islamic State ◽  
Sayyid Qutb ◽  
State Models

The Islamic study who until now still raises the pro-cons is about the state model. Sayyid Quṭb, Taqī al-Din al-Nabhāni and Abū A‘lā Al-Maudūdī, are scientists who conclude that Islam has a state model, namely khilāfah islāmiyyah. This first group closes the space for possible state models other than khilāfah islāmiyyah. Until often this idea raises acts of terrorism and anarchism. While in other groups, such as ‘Alī‘ Abd Rāziq, Nurcholis Madjid and Gus Dur are a series voicing their ideas that Islam does not have a particular state model. This article to find the nature of the state model in Islam. The approach used is the interpretation approach maqāṣidi Ṭāhir Ibn ‘Āsyūr. As a result, the Islamic state model in the Koran is the state provided that it meets the principles of the state according to Islam, such as justice, deliberation, charity, social security, peace, security and equality. Whatever country model, as long as it still holds the six principles above, then the essence is the model of an Islamic state.

The Developmental Trading State

2017 ◽  
Author(s):  
Alex J. Bellamy
Keyword(s):  
Economic Growth ◽  
East Asia ◽  
National Economy ◽  
East Asian ◽  
The State ◽  
State Model ◽  
Principal Function ◽  
Mass Violence ◽  
The Way

This chapter demonstrates that the downwards pressure that state consolidation placed on mass violence was amplified by the type of state that emerged. Across East Asia, governments came to define themselves as “developmental” or “trading” states whose principal purpose was to grow the national economy and thereby improve the economic wellbeing of their citizens. Governments with different ideologies came to embrace economic growth and growing the prosperity of their populations as the principal function of the state and its core source of legitimacy. Despite some significant glitches along the way the adoption of the developmental trading state model has proven successful. Not only have East Asian governments succeeded in lifting hundreds of millions of people out of poverty, the practices and policy orientations dictated by this model helped shift governments and societies away from belligerent practices towards postures that prioritized peace and stability. This reinforced the trend towards greater peacefulness.

scholarly journals A New Efficient Filtering Model for GPS/SINS Ultratight Integration System

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Chaochen Wang ◽  
Yuming Bo ◽  
Changhui Jiang
Keyword(s):  
Navigation System ◽  
The State ◽  
Integrated System ◽  
State Model ◽  
Integration System ◽  
Filter Model ◽  
Integration Mode ◽  
Measurement Vector ◽  
Computation Load ◽  
Vector Dimension

Global Positioning System (GPS) and strap-down inertial navigation system (SINS) are recognized as highly complementary and widely employed in the community. The GPS has the advantage of providing precise navigation solutions without divergence, but the GPS signals might be blocked and attenuated. The SINS is a totally self-contained navigation system which is hardly disturbed. The GPS/SINS integration system could utilize the advantages of both the GPS and SINS and provide more reliable navigation solutions. According to the data fusion strategies, the GPS/SINS integrated system could be divided into three different modes: loose, tight, and ultratight integration (LI, TI, and UTC). In the loose integration mode, position and velocity difference from the GPS and SINS are employed to compose measurement vector, in which the vector dimension has nothing to do with the amount of the available satellites. However, in the tight and ultratight modes, difference of pseudoranges and pseudorange rates from the GPS and SINS are employed to compose the measurement vector, in which the measurement vector dimension increases with the amount of available satellites. In addition, compared with the loose integration mode, clock bias and drift are included in the integration state model. The two characteristics magnify the computation load of the tight and ultratight modes. In this paper, a new efficient filter model was proposed and evaluated. Two schemes were included in this design for reducing the computation load. Firstly, a difference between pseudorange measurements was determined, by which clock bias and drift were excluded from the integration state model. This step reduced the dimension of the state vector. Secondly, the integration filter was divided into two subfilters: pseudorange subfilter and pseudorange rate subfilter. A federated filter was utilized to estimate the state errors optimally. In the second step, the two subfilters could run in parallel and the measurement vector was divided into two subvectors with lower dimension. A simulation implemented in MATLAB software was conducted to evaluate the performance of the new efficient integration method in UTC. The simulation results showed that the method could reduce the computation load with the navigation solutions almost unchanged.

scholarly journals Two-Stage Water Jet Landing Point Prediction Model for Intelligent Water Shooting Robot

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2704
Author(s):  
Yunhan Lin ◽  
Wenlong Ji ◽  
Haowei He ◽  
Yaojie Chen
Keyword(s):  
Pitch Angle ◽  
Back Propagation ◽  
Water Jet ◽  
The State ◽  
Model Parameters ◽  
Propagation Time ◽  
Back Propagation Algorithm ◽  
Angle Error ◽  
Landing Point ◽  
Propagation Algorithm

In this paper, an intelligent water shooting robot system for situations of carrier shake and target movement is designed, which uses a 2 DOF (degree of freedom) robot as an actuator, a photoelectric camera to detect and track the desired target, and a gyroscope to keep the robot’s body stable when it is mounted on the motion carriers. Particularly, for the accurate shooting of the designed system, an online tuning model of the water jet landing point based on the back-propagation algorithm was proposed. The model has two stages. In the first stage, the polyfit function of Matlab is used to fit a model that satisfies the law of jet motion in ideal conditions without interference. In the second stage, the model uses the back-propagation algorithm to update the parameters online according to the visual feedback of the landing point position. The model established by this method can dynamically eliminate the interference of external factors and realize precise on-target shooting. The simulation results show that the model can dynamically adjust the parameters according to the state relationship between the landing point and the desired target, which keeps the predicted pitch angle error within 0.1°. In the test on the actual platform, when the landing point is 0.5 m away from the position of the desired target, the model only needs 0.3 s to adjust the water jet to hit the target. Compared to the state-of-the-art method, GA-BP (genetic algorithm-back-propagation), the proposed method’s predicted pitch angle error is within 0.1 degree with 1/4 model parameters, while costing 1/7 forward propagation time and 1/200 back-propagation calculation time.

Observability and Estimation Error Analysis of the Initial Fine Alignment Filter for Nonleveling Strapdown Inertial Navigation System

2012 ◽  
Vol 135 (2) ◽  
Author(s):  
Seong Yun Cho ◽  
Hyung Keun Lee ◽  
Hung Kyu Lee
Keyword(s):  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Strapdown Inertial Navigation System ◽  
The State ◽  
State Model ◽  
Low Grade ◽  
State Variables ◽  
Estimation Errors ◽  
Strapdown Inertial Navigation

In this paper, performance of the initial fine alignment for the stationary nonleveling strapdown inertial navigation system (SDINS) containing low-grade gyros is analyzed. First, the observability is analyzed by conducting a rank test of an observability matrix and by investigating the normalized error covariance of the extended Kalman filter based on the ten-state model. The results show that the accelerometer biases on horizontal axes are unobservable. Second, the steady-state estimation errors of the state variables are derived using the observability equation. It is verified that the estimates of the state variables have errors due to the unobservable state variables and nonleveling attitude angles of a vehicle containing the SDINS. Especially, this paper shows that the larger the attitude angles of the vehicle are, the greater the estimation errors are. Finally, it is shown that the performance of the eight-state model excluding the two unobservable state variables is better than that of the ten-state model in the fine alignment by a Monte Carlo simulation.

scholarly journals The Two-State Model and Israeli Constitutionalism

2015 ◽  
Vol 44 (4) ◽  
pp. 7-20
Author(s):  
Mazen Masri
Keyword(s):  
Vantage Point ◽  
The State ◽  
State Model ◽  
Jewish State ◽  
The People ◽  
Potential Impact ◽  
Constitutional System ◽  
Definition Of ◽  
Constitutional Regime ◽  
Two State Model

Partitioning historic Palestine into two states is often presented as the most plausible solution to the Israeli-Palestinian conflict. This article examines the potential impact of such a development on the Palestinian citizens of Israel (PCI), primarily from the vantage point of Israel's constitutional regime. The article explores three fundamental aspects of the Israeli constitutional system—its instability, the “Jewish and democratic” definition of the state, and the exclusion of the PCI from “the people” as the unit that holds sovereignty—and argues that the envisaged two-state solution will only reinforce the definition of Israel as a Jewish state and consequently provide further justification for the infringement on the rights of its Palestinian citizens.

scholarly journals Corporate governance in Poland

2009 ◽  
Vol 7 (2) ◽  
pp. 387-394 ◽  
Author(s):  
Tom Mortimer
Keyword(s):  
Corporate Governance ◽  
Future Development ◽  
Traditional Approach ◽  
Hybrid Approach ◽  
The State ◽  
The Future ◽  
Stakeholder Model ◽  
State Models

This article considers the traditional approach to the ’state’ Models of corporate governance, namely shareholder Model and stakeholder Model. It then considers the extent to which developments in a recent accession EU country, Poland, reflects either of these Models or adopts a hybrid approach. It then offers proposals for the future development of corporate governance within Poland.

scholarly journals Developmental State and Ethnic Federalism in Ethiopia:

2019 ◽  
Vol 3 (1) ◽  
pp. 95-127
Author(s):  
Zekarias Beshah Abebe
Keyword(s):  
Cultural Diversity ◽  
Economic Restructuring ◽  
Developmental State ◽  
The Other ◽  
State Model ◽  
Ethnic Federalism ◽  
State Models ◽  
Liberal Approach ◽  
The Right

The ethnic federalization of the post-1991 Ethiopia and the subsequent adoption of developmental state paradigm are the two most important pillars for the country’s political and economic restructuring. An interventionist developmental state model is opted for against the dominant narrative of the non-interventionist neo-liberal approach as the right path to conquer poverty: a source of national humiliation. On the other hand, ethnically federated Ethiopia is considered as an antidote to the historical pervasive mismanagement of the ethno-linguistic and cultural diversity of the polity. The presence of these seemingly paradoxical state models in Ethiopia makes it a captivating case study for analysis. Ethiopia’s experiment of pursuing a developmental state in a decentralized form of governance not only deviates from the prevalent pattern but also is perceived to be inherently incompatible due to the competing approaches that characterize the two systems. This article argues that the way in which the developmental state is being practiced in Ethiopia is eroding the values and the very purposes of ethnic federalism. Its centralized, elitist and authoritarian nature, which are the hallmark of the Ethiopian developmental state, defeats the positive strides that ethnic federalism aspires to achieve, thereby causing discontent and disenfranchisement among a swathe of the society. The article posits that the developmental state can and should be reinvented in a manner that goes in harmony with the ideals of ethnic federalism. The notion of process-based leadership remains one way of reinventing the Ethiopian developmental state model.  

Transformation of the State and Political Economy of the Governance

2020 ◽  
pp. 239-257
Author(s):  
Emek Yıldırım
Keyword(s):  
Political Economy ◽  
Public Administration ◽  
Institutional Economics ◽  
New Institutional Economics ◽  
The State ◽  
State Model ◽  
Functional Changes ◽  
The Public ◽  
Role Of The State

By the 1980s and 1990s, neoliberal policies such as privatizations and deregulations transforming the minimal state model to regulative state model from the Keynesian social welfare state system made some structural and functional changes in the state mechanism, and the public administration has been in the first place due to the changing relationship between the state and the market. In fact, within this context, the new institutional economics (NIE) had a remarkable influence upon the debates upon the altering role of the state. Hence, the transformation of the state in this regard also revealed the argumentations on the governance paradigm along with the doctrinaire contributions of the new institutional economics. Therefore, this chapter will discuss the transformation of the state and the political economy of the governance together with a critical assessment of the new institutional economics in the public administration.

FERMIONS AND LINK INVARIANTS

1992 ◽  
Vol 07 (supp01a) ◽  
pp. 493-532 ◽  
Author(s):  
L. Kauffman ◽  
H. Saleur
Keyword(s):  
Braid Group ◽  
Degrees Of Freedom ◽  
Knot Theory ◽  
Alexander Polynomial ◽  
Baxter Equation ◽  
Group Representations ◽  
R Matrix ◽  
Link Invariants ◽  
Linear Representations ◽  
State Models

This paper deals with various aspects of knot theory when fermionic degrees of freedom are taken into account in the braid group representations and in the state models. We discuss how the Ř matrix for the Alexander polynomial arises from the Fox differential calculus, and how it is related to the quantum group Uqgl(1,1). We investigate new families of solutions of the Yang Baxter equation obtained from "linear" representations of the braid group and exterior algebra. We study state models associated with Uqsl(n,m), and in the case n=m=1 a state model for the multivariable Alexander polynomial. We consider invariants of links in solid handlebodies and show how the non trivial topology lifts the boson fermion degeneracy that is present in S3. We use "gauge like" changes of basis to obtain invariants in thickened surfaces Σ×[0,1].

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